#473D78
Closest named color: Dark Slate Blue (#483D8B). oklch(40% 0.097 289), rgb(71, 61, 120).
Aa
White text reads best on this color (9.51:1).
About this color
#473D78 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.097 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.032 away. White text reads best on it, at 9.51:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.20:1 |
| White text | 9.51:1 |
Values
| HEX | #473D78 |
| RGB | rgb(71, 61, 120) |
| HSL | hsl(250, 33%, 35%) |
| OKLCH | oklch(40% 0.097 289) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #473D78 | 9.51:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #473D78 | 2.20:1 | Fails | Lc 12.1 | Not readable |
| #473D78 text on white | 9.51:1 | AAA | Lc 91.9 | Preferred for body text |
| #473D78 text on black | 2.20:1 | Fails | Lc -10.5 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D8D5F3
oklch(88.5% 0.041 290.1)
-
Step 300
300
#BEBAED
oklch(80.9% 0.072 288.3)
-
Step 400
400
#9E94E4
oklch(70.7% 0.116 288.8)
-
Step 500
500
#8877DD
oklch(63.1% 0.15 289)
-
Step 600
600
#735ECA
oklch(55.6% 0.161 289)
-
Step 700
700
#614DAF
oklch(49.2% 0.15 289.1)
-
Step 800
800
#4F3F8E
oklch(42.7% 0.126 289.3)
-
Step 900
900 (this color)
#473D78
oklch(40% 0.097 289)
-
Step 950
950
#262042
oklch(26.9% 0.062 289.7)
#473D78 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #27477A | 0.049 |
| Deuteranopia (no green cones) | #274477 | 0.047 |
| Tritanopia (no blue cones) | #3A4954 | 0.082 |
| Achromatopsia (no color) | #454545 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #473D78
#473D78
oklch(40% 0.097 289)
- #4C4B00
#4C4B00
oklch(40.1% 0.087 108.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #473D78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.032
- Blueberry #464196 ΔE 0.050
- Twilight #4E518B ΔE 0.062
- Cobalt #1E488F ΔE 0.064
- Dusk #4E5481 ΔE 0.067
- Twilight Blue #0A437A ΔE 0.068
- Light Navy #155084 ΔE 0.072
- Dusk Blue #26538D ΔE 0.072
Use #473D78 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.